Frost history / Twin Spring Fallini, NV
Twin Spring Fallini, NV: frost dates by year
Last spring and first fall frost at NOAA station USC00268443, 1986 to 2004, measured from daily minimum temperatures.
Elevation 5,300 ft, 38.203, -116.176. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 23 | Sep 18 |
| Earliest | May 9 (1993) | Aug 22 (1996) |
| Latest | Jun 18 (1995) | Oct 4 (1998) |
| Trend | 7.7 days earlier per decade | 3.5 days later per decade |
| Years with data | 15 | 13 |
At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Sep 29.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2004 | May 13 | Sep 20 | May 12 | Sep 21 |
| 2003 | no data | Sep 19 | no data | Oct 11 |
| 2000 | May 12 | no data | May 12 | no data |
| 1999 | May 17 | Sep 29 | Apr 23 | Sep 29 |
| 1998 | May 30 | Oct 4 | Apr 27 | Oct 4 |
| 1997 | May 27 | no data | May 2 | no data |
| 1996 | May 23 | Aug 22 | Apr 29 | Sep 17 |
| 1995 | Jun 18 | Sep 29 | May 3 | Sep 30 |
| 1994 | May 16 | Sep 14 | Apr 29 | Oct 7 |
| 1993 | May 9 | Sep 14 | Apr 24 | Sep 25 |
| 1992 | Jun 15 | no data | Mar 19 | no data |
| 1991 | May 20 | Oct 4 | May 12 | Oct 21 |
| 1989 | Jun 1 | Sep 12 | Apr 28 | Oct 3 |
| 1988 | Jun 9 | Sep 12 | May 8 | Sep 12 |
| 1987 | May 22 | Sep 18 | Apr 24 | Sep 28 |
| 1986 | May 23 | Sep 16 | May 23 | Sep 21 |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991–2020 frost probabilities.